| abstract |
The present invention relates to a lubricating oil base oil having a high viscosity index and a low pour point, in particular, consisting essentially of normal paraffin and isoparaffin, (a) having an average carbon number Nc of 1 molecule of from 28 to 40, and (b) Lubricant base oil, characterized in that the ratio of CH 3 carbon to total carbon determined by 13 C-NMR analysis and the average number of branches Nb in one molecule derived from the average number of carbon atoms Nc in one molecule are (0.2Nc-3.1) or less and 1.5 or more. It is about.n n n n Lube base oil |